1 . On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the “wisdom of crowds” effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren’t always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won’t cancel each other out. In more technical terms, the wisdom of crowds requires that people’s estimates be independent. If for whatever reasons, people’s errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist (转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn’t the dominant response. Most frequently, the groups reported that they “shared arguments and reasoned together”. Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain, the potential implications for group discussion and decision-making are enormous.

1. What is paragraph 2 of the text mainly about?

A．The methods of estimation.	B．The underlying logic of the effect.
C．The causes of people’s errors.	D．The design of Galton’s experiment.

2. Navajas’ study found that the average accuracy could increase even if ________.

A．the crowds were relatively small	B．there were occasional underestimates
C．individuals did not communicate	D．estimates were not fully independent

3. What did the follow-up study focus on?

A．The size of the groups.	B．The dominant members.
C．The discussion process.	D．The individual estimates.

4. What is the author’s attitude toward Navajas’ studies?

A．Unclear.

B．Dismissive.

C．Doubtful.

D．Approving.

2 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

I was invited to a cookout on an old friend’s farm in western Washington. I parked my car outside the farm and walked past a milking house which had apparently not been used in many years. A noise at a window caught my attention, so I entered it. It was a hummingbird (蜂鸟), desperately trying to escape. She was covered in spider-webs (蛛网) and was barely able to move her wings. She ceased her struggle the instant I picked her up.

With the bird in my cupped hand, I looked around to see how she had gotten in. The broken window glass was the likely answer. I stuffed a piece of cloth into the hole and took her outside, closing the door securely behind me.

When I opened my hand, the bird did not fly away; she sat looking at me with her bright eyes. I removed the sticky spider-webs that covered her head and wings. Still, she made no attempt to fly. Perhaps she had been struggling against the window too long and was too tired? Or too thirsty?

As I carried her up the blackberry-lined path toward my car where I kept a water bottle, she began to move. I stopped, and she soon took wing but did not immediately fly away.

Hovering (悬停), she approached within six inches of my face. For a very long moment, this tiny creature looked into my eyes, turning her head from side to side. Then she flew quickly out of sight.

During the cookout, I told my hosts about the hummingbird incident. They promised to fix the window. As I was departing, my friends walked me to my car. I was standing by the car when a hummingbird flew to the center of our group and began hovering. She turned from person to person until she came to me. She again looked directly into my eyes, then let out a squeaking call and was gone. For a moment, all were speechless. Then someone said, “She must have come to say goodbye.”

注意：
1. 续写词数应为 150 左右；
2. 请按如下格式在答题纸的相应位置作答。

A few weeks later, I went to the farm again.

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I was just about to leave when the hummingbird appeared.

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4 . Self-esteem is the ruling view you have of yourself. This includes your beliefs about your inner qualities and how you think others see you.     1     Someone can develop low self-esteem even when they are highly functional and greatly skilled. Understanding this mysterious emotional currency might be the key to unlocking your own self-worth.

People with healthy self-esteem don't need to boast about themselves to others. People with low self-esteem may tell you how much everyone loves them, what a great job they do at work, and how amazing they are at pretty everything under the sun even though they really wonder if it's true. People may see them as obnoxious or “full of themselves”.     2     They are not shy about sharing ideas, including constructive criticisms of others. They also take care of themselves without second-guessing or apologizing. They are the people who we say seem “sure of themselves”.

If you're starting to think you may have low self-esteem, you can work on the way you talk to yourself. When you turn off negative self-talk, you can open the floor to positive reinforcements and access the courage to show different sides of yourself. It isn't going to feel good at first, though. Keep going until it becomes less and less and maybe even a few awkward laughs in the mirror may help.     3    

However, in serious cases of low or even non-existent self-esteem, you may want to call in a professional or a specialist. Good mental health is important, and professionals doing psychotherapy do not pass judgement or give corrections.     4     It is the best way to get at the roots of your real self-esteem problems.

    5     It will take some work but your entire life — from your relationships to your body image to your work habits — will be touched with the kind of power that only comes from someone believing in themselves. This is the hardest part, and the greatest leap. With some changes and support, you can improve your self-esteem and see how everything else changes as a result.

A．Self-esteem is not always rooted in reality, though.

B．You have the power to shape a new self-perception.

C．This encourages you to speak openly without worry.

D．The real test of character is whether they can learn from their mistakes.

E．Self-esteem refers to a person's overall sense of his or her value or worth.

F．People with a healthy level of self-esteem present themselves with a casual confidence.

G．With some practice and persistence, you will win this internal struggle to see your self-worth.

5 . Hundreds of scientists, writers and academics sounded a warning to humanity in an open letter published last December: Policymakers and the rest of us must engage openly with the risk of global collapse. Researchers in many areas have projected the widespread collapse as “a credible scenario(情景) this century”.

A survey of scientists found that extreme weather events, food insecurity, and freshwater shortages might create global collapse. Of course, if you are a non-human species, collapse is well underway.

The call for public engagement with the unthinkable is especially germane in this moment of still-uncontrolled pandemic and economic crises in the world's most technologically advanced nations. Not very long ago, it was also unthinkable that a virus would shut down nations and that safety nets would be proven so disastrously lacking in flexibility.

The international scholars’ warning letter doesn't say exactly what collapse will look like or when it might happen. Collapseology, the study of collapse, is more concerned with identifying trends and with them the dangers of everyday civilization. Among the signatories(签署者) of the warning was Bob Johnson, the originator of the “ecological footprint” concept, which measures the total amount of environmental input needed to maintain a given lifestyle. With the current footprint of humanity, “it seems that global collapse is certain to happen in some form, possibly within a decade, certainly within this century,” Johnson said in an email.

“Only if we discuss the consequences of our biophysical limits,” the December warning letter says, “can we have the hope to reduce their speed, severity and harm”. And yet messengers of the coming disturbance are likely to be ignored. We all want to hope things will turn out fine. As a poet wrote,

Man is a victim of dope(麻醉品)

In the incurable form of hope.

The hundreds of scholars who signed the letter are intent(执着) on quieting hope that ignores preparedness. “Let's look directly into the issue of collapse,” they say, “and deal with the terrible possibilities of what we see there to make the best of a troubling future.”

1. What does the underlined word “germane” in Paragraph 3 probably mean?

A．Scientific.	B．Credible.
C．Original.	D．Relevant.

2. As for the public awareness of global collapse, the author is________.

A．worried	B．puzzled
C．surprised	D．scared

3. What can we learn from this passage?

A．The signatories may change the biophysical limits.

B．The author agrees with the message of the poem.

C．The issue of collapse is being prioritized.

D．The global collapse is well underway.

6 . 阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。

I needed to do something in my community (社区) in order to complete the community service hours required to graduate from high school. Some of my friends had signed up to spend time at a soup kitchen, so I did, too. It seemed like a good thing to do.

I thought that we would just be passing out dinners to those in need, but I found out we would be doing everything from preparing to serving the dinner. We began preparing the food, from mixing salad dressing to separating frozen meat. Much still needed to be done before dinner was served, but already outside the building many homeless people were gathering. It wasn’t until a couple of hours later that we opened the doors and began serving dinner.

As the line of people came toward me, I got a little scared. I’d come face to face with the homeless: How should I act? How would they treat me? Would they hate me for having more than they did? While some of the people looked very friendly, some of them looked so dangerous. I didn’t have too much time to worry about it. I was assigned (分配) to serve the salad with the lady next to me. She smiled at me and said if I needed help, she’d be right there, which I found quite comforting.

I had never seen so many people wanting food. They were of all ages and nationalities. Most of them wore clothes that were torn and dirty. Some looked like they had tally given up on life, while others seemed to be making the best of the situation, smiling and joking. Some were better off than others, but they all needed a good meal and a warm place to eat. It saddened me to think of how many people there were who didn’t have a place to call home and the only food they got came from a soup kitchen.

注意：
1. 所续写短文的词数应为150左右；
2. 至少使用5个短文中标有下划线的关键词语；
3. 续写部分分为两段，每段的开头语已为你写好；
4. 续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1:

As they came in my direction, I put on my brightest and happiest smile.

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Paragraph 2:

I was so happy that I had earned my service hours in this way.

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7 . My students frequently ask me how I planned out my career to become president of Fidelity Investments. I always tell them, “There was no grand plan; I backed into my career one step at a time.” In this tough economy and ever-changing world, it is more important than ever to smartly evaluate each step in your career. To prepare for whatever surprises lie ahead, try to make choices today that will maximize your options in the future.     1    

Gaining transferable (可转移的) knowledge begins with the choices you make at school. You want your education to provide you with the necessary skills and expertise to succeed in a wide variety of jobs.     2     I favor those that involve extensive writing, rigorous analysis, or quantitative skills.

Once you have finished your formal education, search for jobs that will allow you to further expand your transferable knowledge—to help you find your next job. Let’s say you take a job putting together airplane leases. Within a few years, you could become the world’s expert on the subject.     3     By contrast, if you take a job that will expand your computer programming skills, you can greatly boost your options for later steps in your career.

Remember gaining transferable knowledge is only one piece of the puzzle.     4     As a saying goes, “Organizations don’t hire people. People hire people.” The more people you know, the more people will think of you when a job pops open—even when it is not publicly advertised.

Of course, you can build your network to some degree without changing jobs.     5     But this sort of event-driven networking pales in comparison with the deep bonds you can develop with your colleagues by working, communicating, and traveling with them.

A．You can make yourself more attractive.

B．Gain transferable expertise and form close bonds with your colleagues.

C．Your next step should help you expand your web of personal relationships.

D．This later helped me evaluate and start business units throughout the world.

E．You can attend conferences or participate in committees at trade associations.

F．This means that you need to make smart choices about the courses you will follow.

G．However, this narrow expertise probably won’t help you in any other line of work.

8 . Animal appear to predict earthquakes by sensing electricity in the air — the first study to find reliable evidence of the phenomenon has shown.

Cameras revealed an “amazing” drop in the number of animals up to 23 days before a major quake hit their rainforest home at Yanachaga National Park in Peru. Lead scientist Dr Rachel Grant, from Anglia Ruskin University, said, “The results showed that just before the earthquake, animals’ activity dropped right down.”

On a normal day the cameras placed around Yanachaga National Park record between 5 and 15 animals. But in the 23 days before the earthquake, the number of animals dropped to five or fewer per day. No animals were photographed at all on five of the seven days immediately before the quake.

Another study showed that animal activity remained normal in the park over a different period when seismic (地震的) activity was low. Co-author, professor Friedemann Freund, said, “The cameras were located at an altitude of 900 meters. If air ionization occurred, the animals would escape to the valley below, where there were fewer positive ions ( 离子). With their ability to sense their environment, animals can help us understand small changes that occur before major earthquakes.”

Other evidence suggested that before the earthquake, the air around the high mountain sites filled with positive ions that can be produced when rocks are placed under stress. Positive ions have been known to cause ill effects in humans as well as animals. Scientists believe the animals were made to feel uncomfortable by the positive ions, leading them to avoid the area. They are thought to have escaped to lower ground, where the air was less ionized. The findings may help experts develop better short-term seismic forecasts.

1. How did scientists conduct the study?

A．By comparing different animals’ habits.

B．By observing animals in high mountains.

C．By explaining the positive ion phenomenon.

D．By analyzing images of animals they obtained.

2. What can be inferred from animal activity before earthquakes?

A．The ground at a lower altitude is less ionized.

B．Cameras normally record more animals per day.

C．Earthquake warnings can be detected in lower places.

D．The activity of animals and earthquakes is consistent.

3. What can we learn from the text?

A．The findings make for accurate seismic forecast.

B．Animals tend to be uneasy with more positive ions.

C．Positive ions make humans and animals depressed.

D．All the animals remain abnormal before the earthquake.

4. What can be a suitable title for the text?

A．Negative Influence of Positive Ions.

B．Ions’ Destruction to the Environment.

C．Animals’ Behavior Before Earthquakes.

D．Creatures’ Ability to Predict Earthquakes.

9 . The next time San Francisco residents stop a taxi, they may step into a car with no one behind the wheel. Driverless taxis are now allowed to come on the city’s streets. On June 2, 2022, Cruise, a division of General Motors (GM), was approved to charge for rides in its self-driving cars, becoming the first company allowed to operate commercial driverless cars in a major US city.

Though Cruise is regarding it as a big win, its self-driving cars aren’t totally free to run on the streets of San Francisco as they please. Cruise vehicles will be limited to transporting passengers in less crowded areas of the city between 10 p.m. and 6 a.m. The speed limit is 30 mph. They are also not allowed to operate in heavy rain or fog. The rules are meant to reduce any injuries or accidents.

Cruise plans to launch the service gradually with a team of just 30 cars. The first robotaxis will be improved versions of GM’s Chevrolet Bolt. However, the company is seeking approval to get its custom-built Cruise Origin on public roads. The driverless electric vehicle has no wheels or pedals (踏板) and can attain highway speeds. The car consists mostly of a siting space, where passengers can face each other.

Cruise’s ability to obtain the commercial permit to operate is a big step forward. However, the company still has to convince passengers that its technology is safe. Many remain concerned about safety. A 2021 survey by the American Automobile Association found that 74 percent of Americans are afraid to ride in a self-driving vehicle.

It remains to be seen how the new driverless taxi experiment will play out in San Francisco. But based on the vast number of companies that are racing to develop self-driving vehicles and the tens of thousands of people on waitlists for robotaxi rides, the Cruise pioneering program is at least set for popularity, if not success.

1. What can we learn about the Cruise’s driverless ride services?

A．The services have turned out to be a great success.

B．The services receive great support from the public.

C．The services have run in some major cities of the USA.

D．The services are limited to some regions of San Francisco.

2. What does the author describe in detail in paragraph 3?

A．The feature of Cruise Origin.

B．The future of self-driving cars.

C．The original plan of the company.

D．The new version of Chevrolet Bolt.

3. What is the attitude of most Americans towards the self-driving taxis?

A．Doubtful.	B．Opposed.
C．Favourable.	D．Unconcerned.

4. What can be the best title of the text?

A．Cruise Offers Free Self-driving Ride Services

B．Self-driving Cars Are Coming to San Francisco

C．Self-driving Vehicles Are Popular in Major Cities

D．Companies Begin to Charge for Rides in Self-driving Cars

10 . Plato believed that talent and intelligence _________genetically and thus _________in children born to all classes, although his proposed system of selective public education for an educated minority of the population does not really follow a democratic model.

A．is not distributed, is to be found	B．are not distributed, are to be found
C．is not distributed, has been found	D．are not distributed, have been found